Lubricating system



I; BLISS.

LUBRICATING SYSTEM.

APPLICATION FILED AUG-5, 1921.

1,411,202; PatefitedMar. 28,1922.

4 SHEETSSHEET l- F ZJ J. BLISS.

LUBR'ICATING SYSTEM.

APPUCATION FILED AUG-5 [921- 1,41 1,202. Patented Mar. 28, 1922..

EEEEEEEEEEE 3- J. BLISS.

LUBRICATING SYSTEM. APPLICATION FILED AuG.5. 1921.

Patented Mar. 28, 1922.

4 SHEETS-SHEET 4.

- posed;

U T D STATES PATENT OFFICE.

JOHN BLISS, on-LoNnon, V ENGLAND, ASSIGNOR T0 0. c. WAKEFIELD a LIMITED," OFLONDON,'ENGLAND,= alan ne}: oomrm:

LUBRICATING SYSTEM. 1

To all whom it may concern: 7

Be itknown that LJOH BLIss, a subject of-the Kingof England, residing at London, England, have invented certain new and useful Improvements in Lubricating Systems, of, which the. following is a specification.

This invention is for improvementsin or relating tolubricating systemsof the type wherein steam issupplied to oil-feed. cone duits and mixes therein with the oil that is being supplied through .it under pressure 'by a pump. I

This invention has for its main object to provide. that the steam shall be automaticallyv admittedtothe-oil when the pump is operating and automatically out off when it ceases-to work.

According to thisinvention, a lubricator of thetype describecbhas combinedvwith a pressure-chamber through which the lubricant is forced to one or more feed-conduits,

a-member whoseposition controlsthe admis- T sion of steam to the feed-conduit or conduits but which is itself yieldingly controlled in a directionto shut off the admission of steam thereto and has a face which is exposed to the pressure offluid inthe aforesaid. pressure-chamber so that the pressure in such chamber when sufficiently high moves the member against-its yielding control to admitsteam. V a g Preferably, a pluralityof pumps are provided to deliver lubricant into the single pressure-chamber and a plurality. of conduits fee-d thelub'ricant from the said single pressure-chamber.

In the accompanying drawings which illustrate onemethod of carrying out this invention; a

Figure 1" is a transverse section through the lubricator in the plane in which the automatically controlled steam-valve is dis -Figure2 is ajtransve-rse section through the lubricator in'aplane in sight-feeds is disposed;

Figure 3 is a longitudinal section through part of thelubricator; and

V Figure 4 is a plan of part of lubricator with the cover-plate removed from one half 7 and having some details in section.

Like reference characters indicate. like parts throughout the drawings.

The lubricator in general is of a known valve E keep it: at

enter the barrel G w 'hich one of the V a spring-controlled reliefsvalve C Serial .;m .f 490,031; I

type comprising a tank riAin which is mount} ed acam-shaft Blwhichengagesand'o er; ates a plurality ofpuinp-plungers'Bhl he tankfis'inte'nde'd to be filled with lubricant and the pump-plungei s thus draw 'injlubri cant through aperforationsB in their barrels and discharge it. past non-return valves 13; Usually the, barrels discharge intose'parate feedconduits butlin the apparatus employed for the purpose ofthe present inventiontliel discharge into 7 a pressure-chamber C which is common to vall the-barrels anduis a'lso com: mon to a pluralit. of sight-feed devices D (Figure 2) each fo which communicates with a-feed conduit.D I Steam under pressure is also admittedto thefeed-conduits D froma live-steam pipe E which has a branch E from which ducts E (Figure 2) communicate with each'lubricant ,feedeconduit. i V I v a When the apparatus isinotr'working a ball mounted in a housingrF ,prevllts the passage of steam from the conduitEIto theconduitE by resting underthe action of gravity on the seating F To automatically. raise a this valve when required and admit. steam the following apparatus is, employedi 7 A piston G is mountediin a barrelGr and is yieldingly controlled by a sb ringG? to the bottom of the barrel, asshown in themlrawing. The piston hasafstem G which extends out from the top of the barrel and enters the housing F of the valve E through a stuffing-box F The'hou'sing F is spaced away from the ,barrelG? so that the stem has to extend acrossthe space provided between. the two and thus; no ,leakage in a the housing can 5 of steam past the stem Theunder-face of the piston G isexposed to the pressure of fluid,-that is the lubricant, in the-chamber C bymeans of a duct G which communicates; between the pressurechamber and the lower endof-the-bar- 1 G '-'/x-" Thepressure-chamber C is providedvwith pastwhich lubricant can be, returned through a duct C" to the mainlubricant-chamber. V r The operation of this apparatus is as follows:. -c j When the shaft B is'rotating lubricant is continuously pumped into the pressurechamber Cv and passes thence through .the

sight-feed devices D to the feed-conduits D and at normal working the pumps supply rests upon the seating F and the supply is 'then cut off.

lubricant in suflicient quantity to maintain a pressure in the chamber C which is suf- .ficient' to raise the piston againsttheaction is lift Live steam iszthus ala [It will be seen that the steam-control in this lubricat or is entirely automatic and the parts involved are easy to manufacture and such as are not liable'to get out of order.

' a pump for lubricant, a 40 Q to thrust exerted by single mechanism, 30

Obviously, the automatic steam-control de vice can be used with a single pump and a single delivery-conduit, but where a lubricator is supplying a number of points in a such as a locomotive, it is desiredto shut of thesteam for all the feed-conduits simultaneously and thus the apparatus described is admirably suited for use with a plurality of feed-conduits supplied .with steam through a single controlled valve.

' What I claim as my invention and desire to secure by Letters Patent is 1. In a lubricator the combination with pressure-chamber into which the pump delivers the lubricant and whence it is cated, a valve for'admitting steam tothe lu bricant'on its way to cated, a yieldingly controlled member hav- .ing operative connectionwiththe valve,'the yielding control perating in such direction as to move the valve, said member having one face opposed the fluid infthe pressure-chamber, which face is so disposed that such thrust tends to move the member against its yielding control to open the steam-valve, substantially as set forth.

2.111 a lubricator the combination with a'plurality of pumps for lubricant, a single pressure-chamber into which all the pumps deliver thelubricant and whence it is, distributed to the various parts to be lubricated,

a single valve for controlling the admisto the lubricant on its way to sion of steam end of which the piston fed to the part to be lubri the part to be lubri member for closure of the" tends to be held by its yielding control its yielding control,-

the parts to be lubricated, a yieldingly controlled member havingoperative connection with the valve, the yielding control operating in such direction as to move the .mem-' her for i closure of the valve, said member having oneface opposed to thrust the fluid in thepressure-chamber, which face is so disposed that such thrust tends to move the -member against its yielding control. to open the steam-valve, substantially as set forth. f V

In a lubricator the combination with a pump for lubricant, a pressure-chamber into which the pump delivers the lubricant and whence it is fed to the part. to be lubricated, a valve for admitting steam to the lubricant on its way to the part to be lubricated, a housing for the said valve, a yieldingly controlled'piston, a barrel in which the said piston works and at one end of which it tends to be kept by the which barrel is spaced away fromthe said housing forthe valve, a conduit communicating with the interior of the barrel at that tends to be kept and with the pressure-chamber aforesaid,.so that one face of the'pistonis exposed to the pressure of the lubricant in said chamber, and

exerted by said yielding control, J

operative connection through astufling-box" in the housing for the steam-control valve with the valve therein, substantially asset forth. 7

4%. In a lubricator the combination with a pump for lubricant, a pressure-chamber into which the pump delivers the lubricant and whence it is fed to the part to be lubri-' cated, ball-valve for admitting steam to the lubricant on its way to the part to be lubricated, a housing for said ball-valve providing a seating on which the ball "rests when steam is not to 'passto the lubricant, a yieldingly controlled piston, a barrel for the piston spaced away from the housing for the ball-valve, the yielding control tending always to keep the piston at one'end of its barrel, a conduit connecting the interior of the barrel at that end at which the piston with the interior of the pressure-chamberand a stem on the piston which projects out from the barrel and extends through a stuflin'g-box in the housing for the ball-valve at a point beneath the'ball-valve to-lift the latter from its seating when substantially as set forth.

In testimony whereof I affixmysignature. JOHN BLISS.

the piston is inoved against 

